/* $Id: rpc_tblout.c,v 1.4 2006/05/30 00:00:19 dm Exp $ */
/*
 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
 * unrestricted use provided that this legend is included on all tape
 * media and as a part of the software program in whole or part.  Users
 * may copy or modify Sun RPC without charge, but are not authorized
 * to license or distribute it to anyone else except as part of a product or
 * program developed by the user or with the express written consent of
 * Sun Microsystems, Inc.
 *
 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
 *
 * Sun RPC is provided with no support and without any obligation on the
 * part of Sun Microsystems, Inc. to assist in its use, correction,
 * modification or enhancement.
 *
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
 * OR ANY PART THEREOF.
 *
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
 * or profits or other special, indirect and consequential damages, even if
 * Sun has been advised of the possibility of such damages.
 *
 * Sun Microsystems, Inc.
 * 2550 Garcia Avenue
 * Mountain View, California  94043
 */

/*
 * rpc_tblout.c, Dispatch table outputter for the RPC protocol compiler
 */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "rpc_parse.h"
#include "rpc_util.h"

#define TABSIZE		8
#define TABCOUNT	5
#define TABSTOP		(TABSIZE*TABCOUNT)

static char tabstr[TABCOUNT + 1] = "\t\t\t\t\t";

static char tbl_hdr[] = "const struct rpcgen_table_tc %s_table[] = {\n";
static char tbl_end[] = "};\n";

static char null_entry[] = "    {\n\t(char *(*)())0,\n\
 \t(xdrproc_t) xdr_void,\t\t0,\n\
 \t(xdrproc_t) xdr_void,\t\t0,\n    },\n";

static char tbl_nproc[] = "const int %s_nproc =\n\tsizeof(%s_table)/sizeof(%s_table[0]);\n";

static void write_table (definition *);
static void printit (char *, char *);

void
write_tables (void)
{
  list *l;
  definition *def;

  f_print (fout, "\n");
  for (l = defined; l != NULL; l = l->next) {
    def = (definition *) l->val;
    if (def->def_kind == DEF_PROGRAM) {
      write_table (def);
    }
  }
}

static void
write_table (definition * def)
{
  version_list *vp;
  proc_list *proc;
  int current;
  int expected;
  char progvers[100];
  int warning;

  for (vp = def->def.pr.versions; vp != NULL; vp = vp->next) {
    warning = 0;
    s_print (progvers, "%s_%s",
	     locase (def->def_name), vp->vers_num);
    /* print the table header */
    f_print (fout, tbl_hdr, progvers);

    if (nullproc (vp->procs)) {
      expected = 0;
    }
    else {
      expected = 1;
      f_print (fout, "%s", null_entry);
    }
    for (proc = vp->procs; proc != NULL; proc = proc->next) {
      current = atoi (proc->proc_num);
      if (current != expected++) {
	f_print (fout,
		 "\n/*\n * WARNING: table out of order\n */\n");
	if (warning == 0) {
	  f_print (stderr,
		   "WARNING %s table is out of order\n",
		   progvers);
	  warning = 1;
	  nonfatalerrors = 1;
	}
	expected = current + 1;
      }
      f_print (fout, "    {\n\t(char *(*)())RPCGEN_ACTION(");

      /* routine to invoke */
      if (!newstyle)
	pvname_svc (proc->proc_name, vp->vers_num);
      else {
	if (newstyle)
	  f_print (fout, "_");	/* calls internal func */
	pvname (proc->proc_name, vp->vers_num);
      }
      f_print (fout, "),\n");

      /* argument info */
      if (proc->arg_num > 1)
	printit ((char *) NULL, proc->args.argname);
      else
	/* do we have to do something special for newstyle */
	printit (proc->args.decls->decl.prefix,
		 proc->args.decls->decl.type);
      /* result info */
      printit (proc->res_prefix, proc->res_type);
      f_print (fout, "    },\n");
    }

    /* print the table trailer */
    f_print (fout, "%s", tbl_end);
    f_print (fout, tbl_nproc, progvers, progvers, progvers);

    f_print (fout,
	     "const struct rpc_program_tc %s = {\n"
	     "\t%s, %s, %s_table,\n"
	     "\tsizeof (%s_table) / sizeof (%s_table[0])\n"
	     "};\n\n",
	     progvers, def->def_name, vp->vers_num, progvers,
	     progvers, progvers);
	     
  }
}

static void
printit (char *prefix, char *type)
{
  int len;
  int tabs;


  len = fprintf (fout, "\t(xdrproc_t) xdr_%s,", stringfix (type));
  /* account for leading tab expansion */
  len += TABSIZE - 1;
  /* round up to tabs required */
  tabs = (TABSTOP - len + TABSIZE - 1) / TABSIZE;
  f_print (fout, "%s", &tabstr[TABCOUNT - tabs]);

  if (streq (type, "void")) {
    f_print (fout, "0");
  }
  else {
    f_print (fout, "sizeof ( ");
    /* XXX: should "follow" be 1 ??? */
    ptype (prefix, type, 0);
    f_print (fout, ")");
  }
  f_print (fout, ",\n");
}
